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dis-bench / src /php /php-src /sapi /phpdbg /phpdbg.h
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/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Felipe Pena <felipe@php.net> |
| Authors: Joe Watkins <joe.watkins@live.co.uk> |
| Authors: Bob Weinand <bwoebi@php.net> |
+----------------------------------------------------------------------+
*/
#ifndef PHPDBG_H
#define PHPDBG_H
#ifdef PHP_WIN32
# define PHPDBG_API __declspec(dllexport)
#elif defined(__GNUC__) && __GNUC__ >= 4
# define PHPDBG_API __attribute__ ((visibility("default")))
#else
# define PHPDBG_API
#endif
#include <stdint.h>
#include <stddef.h>
#include "php.h"
#include "php_globals.h"
#include "php_variables.h"
#include "php_getopt.h"
#include "zend_builtin_functions.h"
#include "zend_extensions.h"
#include "zend_modules.h"
#include "zend_globals.h"
#include "zend_ini_scanner.h"
#include "zend_stream.h"
#include "zend_signal.h"
#if !defined(_WIN32) && !defined(ZEND_SIGNALS)
# include <signal.h>
#elif defined(PHP_WIN32)
# include "win32/signal.h"
#endif
#include "SAPI.h"
#include <fcntl.h>
#include <sys/types.h>
#if defined(_WIN32) && !defined(__MINGW32__)
# include <windows.h>
# include "config.w32.h"
# undef strcasecmp
# undef strncasecmp
# define strcasecmp _stricmp
# define strncasecmp _strnicmp
#else
# include <php_config.h>
#endif
#ifndef O_BINARY
# define O_BINARY 0
#endif
#include "php_main.h"
#ifdef ZTS
# include "TSRM.h"
#endif
#undef zend_hash_str_add
#ifdef PHP_WIN32
#define zend_hash_str_add(...) \
zend_hash_str_add(__VA_ARGS__)
#else
#define zend_hash_str_add_tmp(ht, key, len, pData) \
zend_hash_str_add(ht, key, len, pData)
#define zend_hash_str_add(...) zend_hash_str_add_tmp(__VA_ARGS__)
#endif
#ifdef HAVE_PHPDBG_READLINE
# ifdef HAVE_LIBREADLINE
# include <readline/readline.h>
# include <readline/history.h>
# endif
# ifdef HAVE_LIBEDIT
# include <editline/readline.h>
# endif
#endif
/* {{{ strings */
#define PHPDBG_NAME "phpdbg"
#define PHPDBG_AUTHORS "Felipe Pena, Joe Watkins and Bob Weinand" /* Ordered by last name */
#define PHPDBG_ISSUES "https://github.com/php/php-src/issues"
#define PHPDBG_VERSION PHP_VERSION
#define PHPDBG_INIT_FILENAME ".phpdbginit"
#define PHPDBG_DEFAULT_PROMPT "prompt>"
/* }}} */
#ifdef ZTS
# define PHPDBG_G(v) ZEND_TSRMG(phpdbg_globals_id, zend_phpdbg_globals *, v)
#else
# define PHPDBG_G(v) (phpdbg_globals.v)
#endif
#include "phpdbg_sigsafe.h"
#include "phpdbg_out.h"
#include "phpdbg_lexer.h"
#include "phpdbg_cmd.h"
#include "phpdbg_utils.h"
#include "phpdbg_btree.h"
#include "phpdbg_watch.h"
#include "phpdbg_bp.h"
int phpdbg_do_parse(phpdbg_param_t *stack, char *input);
#define PHPDBG_NEXT 2
#define PHPDBG_UNTIL 3
#define PHPDBG_FINISH 4
#define PHPDBG_LEAVE 5
/*
BEGIN: DO NOT CHANGE DO NOT CHANGE DO NOT CHANGE
*/
/* {{{ flags */
#define PHPDBG_HAS_FILE_BP (1ULL<<1)
#define PHPDBG_HAS_PENDING_FILE_BP (1ULL<<2)
#define PHPDBG_HAS_SYM_BP (1ULL<<3)
#define PHPDBG_HAS_OPLINE_BP (1ULL<<4)
#define PHPDBG_HAS_METHOD_BP (1ULL<<5)
#define PHPDBG_HAS_COND_BP (1ULL<<6)
#define PHPDBG_HAS_OPCODE_BP (1ULL<<7)
#define PHPDBG_HAS_FUNCTION_OPLINE_BP (1ULL<<8)
#define PHPDBG_HAS_METHOD_OPLINE_BP (1ULL<<9)
#define PHPDBG_HAS_FILE_OPLINE_BP (1ULL<<10) /* }}} */
/*
END: DO NOT CHANGE DO NOT CHANGE DO NOT CHANGE
*/
#define PHPDBG_IN_COND_BP (1ULL<<11)
#define PHPDBG_IN_EVAL (1ULL<<12)
#define PHPDBG_IS_STEPPING (1ULL<<13)
#define PHPDBG_STEP_OPCODE (1ULL<<14)
#define PHPDBG_IS_QUIET (1ULL<<15)
#define PHPDBG_IS_QUITTING (1ULL<<16)
#define PHPDBG_IS_COLOURED (1ULL<<17)
#define PHPDBG_IS_CLEANING (1ULL<<18)
#define PHPDBG_IS_RUNNING (1ULL<<19)
#define PHPDBG_IN_UNTIL (1ULL<<20)
#define PHPDBG_IN_FINISH (1ULL<<21)
#define PHPDBG_IN_LEAVE (1ULL<<22)
#define PHPDBG_IS_REGISTERED (1ULL<<23)
#define PHPDBG_IS_STEPONEVAL (1ULL<<24)
#define PHPDBG_IS_INITIALIZING (1ULL<<25)
#define PHPDBG_IS_SIGNALED (1ULL<<26)
#define PHPDBG_IS_INTERACTIVE (1ULL<<27)
#define PHPDBG_PREVENT_INTERACTIVE (1ULL<<28)
#define PHPDBG_IS_BP_ENABLED (1ULL<<29)
#define PHPDBG_SHOW_REFCOUNTS (1ULL<<30)
#define PHPDBG_IN_SIGNAL_HANDLER (1ULL<<31)
#define PHPDBG_DISCARD_OUTPUT (1ULL<<32)
#define PHPDBG_HAS_PAGINATION (1ULL<<33)
#define PHPDBG_SEEK_MASK (PHPDBG_IN_UNTIL | PHPDBG_IN_FINISH | PHPDBG_IN_LEAVE)
#define PHPDBG_BP_RESOLVE_MASK (PHPDBG_HAS_FUNCTION_OPLINE_BP | PHPDBG_HAS_METHOD_OPLINE_BP | PHPDBG_HAS_FILE_OPLINE_BP)
#define PHPDBG_BP_MASK (PHPDBG_HAS_FILE_BP | PHPDBG_HAS_SYM_BP | PHPDBG_HAS_METHOD_BP | PHPDBG_HAS_OPLINE_BP | PHPDBG_HAS_COND_BP | PHPDBG_HAS_OPCODE_BP | PHPDBG_HAS_FUNCTION_OPLINE_BP | PHPDBG_HAS_METHOD_OPLINE_BP | PHPDBG_HAS_FILE_OPLINE_BP)
#define PHPDBG_IS_STOPPING (PHPDBG_IS_QUITTING | PHPDBG_IS_CLEANING)
#define PHPDBG_PRESERVE_FLAGS_MASK \
(PHPDBG_SHOW_REFCOUNTS | \
PHPDBG_IS_STEPONEVAL | \
PHPDBG_IS_BP_ENABLED | \
PHPDBG_STEP_OPCODE | \
PHPDBG_IS_QUIET | \
PHPDBG_IS_COLOURED | \
PHPDBG_HAS_PAGINATION)
#ifndef _WIN32
# define PHPDBG_DEFAULT_FLAGS (PHPDBG_IS_QUIET | PHPDBG_IS_COLOURED | PHPDBG_IS_BP_ENABLED | PHPDBG_HAS_PAGINATION)
#else
# define PHPDBG_DEFAULT_FLAGS (PHPDBG_IS_QUIET | PHPDBG_IS_BP_ENABLED | PHPDBG_HAS_PAGINATION)
#endif /* }}} */
/* {{{ output descriptors */
#define PHPDBG_STDIN 0
#define PHPDBG_STDOUT 1
#define PHPDBG_STDERR 2
#define PHPDBG_IO_FDS 3 /* }}} */
#define phpdbg_try_access \
{ \
ZEND_DIAGNOSTIC_IGNORED_START("-Wshadow") \
JMP_BUF *__orig_bailout = PHPDBG_G(sigsegv_bailout); \
JMP_BUF __bailout; \
ZEND_DIAGNOSTIC_IGNORED_END \
\
PHPDBG_G(sigsegv_bailout) = &__bailout; \
if (SETJMP(__bailout) == 0) {
#define phpdbg_catch_access \
} else { \
PHPDBG_G(sigsegv_bailout) = __orig_bailout;
#define phpdbg_end_try_access() \
} \
PHPDBG_G(sigsegv_bailout) = __orig_bailout; \
}
void phpdbg_register_file_handles(void);
typedef struct _phpdbg_oplog_entry phpdbg_oplog_entry;
struct _phpdbg_oplog_entry {
phpdbg_oplog_entry *next;
zend_string *function_name;
zend_class_entry *scope;
zend_string *filename;
zend_op *opcodes;
zend_op *op;
};
typedef struct _phpdbg_oplog_list phpdbg_oplog_list;
struct _phpdbg_oplog_list {
phpdbg_oplog_list *prev;
phpdbg_oplog_entry start; /* Only "next" member used. */
};
/* {{{ structs */
ZEND_BEGIN_MODULE_GLOBALS(phpdbg)
HashTable bp[PHPDBG_BREAK_TABLES]; /* break points */
HashTable registered; /* registered */
HashTable seek; /* seek oplines */
zend_execute_data *seek_ex; /* call frame of oplines to seek to */
zend_object *handled_exception; /* last handled exception (prevent multiple handling of same exception) */
phpdbg_frame_t frame; /* frame */
uint32_t last_line; /* last executed line */
char *cur_command; /* current command */
phpdbg_lexer_data lexer; /* lexer data */
phpdbg_param_t *parser_stack; /* param stack during lexer / parser phase */
#ifndef _WIN32
struct sigaction old_sigsegv_signal; /* segv signal handler */
#endif
#ifdef HAVE_USERFAULTFD_WRITEFAULT
int watch_userfaultfd; /* userfaultfd(2) handler, 0 if unused */
pthread_t watch_userfault_thread; /* thread for watch fault handling */
#endif
phpdbg_btree watchpoint_tree; /* tree with watchpoints */
phpdbg_btree watch_HashTables; /* tree with original dtors of watchpoints */
HashTable watch_elements; /* user defined watch elements */
HashTable watch_collisions; /* collision table to check if multiple watches share the same recursive watchpoint */
HashTable watch_recreation; /* watch elements pending recreation of their respective watchpoints */
HashTable watch_free; /* pointers to watch for being freed */
HashTable *watchlist_mem; /* triggered watchpoints */
HashTable *original_watchlist_mem; /* the original allocation for watchlist_mem, used when watchlist_mem has changed temporarily */
HashTable *watchlist_mem_backup; /* triggered watchpoints backup table while iterating over it */
bool watchpoint_hit; /* a watchpoint was hit */
void (*original_free_function)(void * ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); /* the original AG(mm_heap)->_free function */
phpdbg_watch_element *watch_tmp; /* temporary pointer for a watch element */
char *exec; /* file to execute */
size_t exec_len; /* size of exec */
zend_op_array *ops; /* op_array */
zval retval; /* return value */
int bp_count; /* breakpoint count */
int vmret; /* return from last opcode handler execution */
bool in_execution; /* in execution? */
bool unclean_eval; /* do not check for memory leaks when we needed to bail out during eval */
zend_op_array *(*compile_file)(zend_file_handle *file_handle, int type);
zend_op_array *(*init_compile_file)(zend_file_handle *file_handle, int type);
zend_op_array *(*compile_string)(zend_string *source_string, const char *filename, zend_compile_position position);
HashTable file_sources;
zend_arena *oplog_arena; /* arena for storing oplog */
phpdbg_oplog_list *oplog_list; /* list of oplog starts */
phpdbg_oplog_entry *oplog_cur; /* current oplog entry */
struct {
int fd;
} io[PHPDBG_IO_FDS]; /* io */
ssize_t (*php_stdiop_write)(php_stream *, const char *, size_t);
struct {
bool active;
int type;
int fd;
char *msg;
int msglen;
} err_buf; /* error buffer */
zend_ulong req_id; /* "request id" to keep track of commands */
char *prompt[2]; /* prompt */
const phpdbg_color_t *colors[PHPDBG_COLORS]; /* colors */
char *buffer; /* buffer */
bool last_was_newline; /* check if we don't need to output a newline upon next phpdbg_error or phpdbg_notice */
FILE *stdin_file; /* FILE pointer to stdin source file */
const php_stream_wrapper *orig_url_wrap_php;
char input_buffer[PHPDBG_MAX_CMD]; /* stdin input buffer */
int input_buflen; /* length of stdin input buffer */
phpdbg_signal_safe_mem sigsafe_mem; /* memory to use in async safe environment (only once!) */
JMP_BUF *sigsegv_bailout; /* bailout address for accessibility probing */
uint64_t flags; /* phpdbg flags */
char *sapi_name_ptr; /* store sapi name to free it if necessary to not leak memory */
zend_ulong lines; /* max number of lines to display */
ZEND_END_MODULE_GLOBALS(phpdbg) /* }}} */
#endif /* PHPDBG_H */